EP 0032041 A2 19810715 - Use of fumaric acid polymers as antiscalants, and processes for their preparation; polymeric intermediates of mono or dialkyl fumarate, and processes for their production.
Title (en)
Use of fumaric acid polymers as antiscalants, and processes for their preparation; polymeric intermediates of mono or dialkyl fumarate, and processes for their production.
Title (de)
Verwendung von Fumarsäurepolymeren als Mittel gegen Ablagerungen und Verfahren zu ihrer Herstellung; polymere Mono- oder Dialkylfumarat-Zwischenprodukte und Verfahren zu ihrer Herstellung.
Title (fr)
Utilisation de polymères d'acide fumarique comme agents pour inhiber la formation d'incrustations et procédés pour leur préparation; produits intermédiaires polymères à base de fumarates d'alkyle ou de dialkyle et procédés pour leur préparation.
Publication
Application
Priority
US 10806879 A 19791228
Abstract (en)
A method for controlling scale deposition from water containing scale forming impurities, which comprises: treating the water with at least about 0.5 part per million of a polymer of fumaric acid with from 0 to about 50 mole percent of at least one hydrophilic monomer selected from acrylamide, methacrylamide, acrylic acid, methacrylic acid or maleic anhydride and from 0 to about 15 mole percent of at least one ethylenically unsaturated, hydrophobic monomer, the average molecular weight of the polymer being from about 300 to about 10,000; processes for the production of said polymers; polymeric intermediates of mono or dialkyl fumarate, and processes for their production.
IPC 1-7
IPC 8 full level
C08F 18/00 (2006.01); C02F 5/00 (2006.01); C02F 5/08 (2006.01); C02F 5/10 (2006.01); C08F 18/18 (2006.01)
CPC (source: EP)
C02F 5/10 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT LU NL
DOCDB simple family (publication)
EP 0032041 A2 19810715; EP 0032041 A3 19811007; EP 0032041 B1 19851113; DE 3071237 D1 19851219; DK 549680 A 19810629; EG 14702 A 19850630; GR 72302 B 19831018; JP S5699212 A 19810810
DOCDB simple family (application)
EP 80304666 A 19801222; DE 3071237 T 19801222; DK 549680 A 19801223; EG 79580 A 19801224; GR 800163740 A 19801222; JP 18498080 A 19801225